PCT Letterbox

From Wapinitia Pass head north on the PCT. You will soon come to an intersection with a trail to the Twin Lakes. Continue on the PCT for about 1/2 mile until you reach the part of the trail shown in the photo. Note that the arching tree may not last so don't focus only on it. At the base of one of the big trees on the left side of the trail you'll find a flat white rock with some moss on it. The letterbox is hidden under the rock.